City of Superior
EPA ID: NE3112904 · 1,979 people served · 1 ZIP code
ZipCheckup's reading of EPA records for City of Superior (NE3112904): 1 violation on record since 2021. Past violations at City of Superior total 1, all marked resolved; it supplies 1,979 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Superior Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with City of Superior have a median household income of $63,068 and about 2,382 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 90% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 100% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
City of Superior's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Nebraska
System Overview
City of Superior, (EPA ID: NE3112904) is a community water system in Nebraska that serves approximately 1,979 people from groundwater sources.
This system serves ZIP code 68978 in Superior.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2026 | Revised Total Coliform Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0034 mg/L | No | 2025-12-31 |
The accepted LCR snapshot contains 1 reported copper action-level exceedance record for this PWSID. The source does not provide a verified copper level for publication.
Radon Risk in Service Area
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NE or modeled from parcel and building-footprint data.
- 68978 - Superior
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Superior (NE3112904) on EPA.gov.
Frequently Asked Questions
Is City of Superior water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Superior; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does City of Superior serve?
City of Superior serves approximately 1,979 people across 1 ZIP code in Nebraska.
Where does City of Superior get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Superior (NE): 1 EPA Violation. https://zipcheckup.com/water-system/ne3112904/
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author = {{ZipCheckup}},
title = {{City of Superior (NE): 1 EPA Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ne3112904/}
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What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Superior (EPA ID: NE3112904) - request the latest Consumer Confidence Report or ask about specific contaminants.